Suggestions for US expats

Great website...love all of the info. I was hoping someone might provide some advice for a US family considering a job in Brussels. We have 3 kids, one of whom is particularly strong academically. We are asking for recommendations on which international schools have a stronger focus on academics that might be better at keeping her engaged and out of trouble. We would also appreciate any advice on which schools have a good representation of US families, making it easier to transition back to the US when we need to.

I know everyone asks where to live, so I hate to ask the same, but are there good websites to get a feel for what type of housing is available for rent and if you had to choose another suburb besides waterloo where there are more US families, what would that be?